Hi, I just wanted to add another style that is heavily influenced by Hapkido. It is called Hapmudo and was founded by Grandmaster Yong Sung Lee. It is a mixed martial art that is still very focused on traditional aspects. The website is: http://www.hapmudo.net/ -- On a side note, I have been studying this style for around three years now and I really like it. Hope this helps ^_^.

Im working on my 4th Dan in Hapkido and work all over the world teaching semenars and classes. The big issue with Hapkido in Korea is that when they started selling the belts my Master left them. I think also interesting that alot come from Taekwondo based and if you go back look here It was from Japan and was alot more.

this main place to start:http://en.wikipedia.org/wiki/Takeda_S%C5%8Dkaku

When you look at what hapkido came from it is as the name Cordinated energy or power way, so it means the comming together it was very Ryu based.